Type VDR

For large temperature differences in heating mode, high penetration of air, with adjustable air control blades

Circular ceiling diffusers, with manual or motorised adjustment of the air discharge direction, particularly suitable for high rooms

  • Nominal sizes 315, 400, 630, 800
  • Volume flow rate range 175 – 1495 l/s or 630 – 5382 m³/h
  • Diffuser face made of aluminium
  • For supply air
  • For variable and constant volume flows
  • Discharge direction can be adjusted manually or with an actuator
  • High penetration of air at low sound power level


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours
  • Horizontal or vertical duct connection
  • Actuators for adjusting the air discharge direction

VDR 00131770_0
  • Application
  • Description

Application

  • Type VDR ceiling diffusers are used as supply air diffusers for high rooms in comfort and industrial zones
  • For mixed flow ventilation with different air patterns in heating and cooling modes
  • Horizontal two-way supply air discharge in cooling mode
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • Air discharge from 0° (horizontal) to 90° (vertical)
  • For variable and constant volume flows
  • For supply air to room air temperature differences from –10 to +15 K
  • For room heights exceeding 3.8 m
  • For suspended ceilings
  • Freely suspended installation
  • Ideal for combination with TDC temperature difference control module

Special characteristics

  • High penetration of air at low sound power level
  • Particularly suitable for rooms with varying heat loads
  • Ideal adaptation of the air discharge pattern due to two sections of adjustable blades
  • Discharge direction can be adjusted manually or with an actuator
  • Plenum box with side entry or top entry spigot, and variant with electric actuator and inspection access

Nominal sizes

  • 315, 400, 630, 800

Variants

  • Diffuser face only


Connection

  • H: Horizontal duct connection
  • V: Vertical duct connection

Parts and characteristics

  • Circular diffuser face with two sections of adjustable blades
  • Diffuser front frame
  • Spigot ring

Attachments

  • Electric actuators for adjusting the air discharge direction

Useful additions

  • TDC temperature difference control module

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180

Materials and surfaces

  • Blades, front frame and spigot ring made of aluminium
  • Plenum box and cross bar made of galvanised sheet steel
  • Front frame, blades and spigot ring powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour

Standards and guidelines

  • Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning to VDI 6022

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Contact

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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +43 1 250 43-0| Fax: +43 1 250 43 34